Radiant energy – Ionic separation or analysis – With sample supply means
Patent
1992-01-24
1992-12-15
Berman, Jack I.
Radiant energy
Ionic separation or analysis
With sample supply means
422 81, 7386311, 7386481, H01J 4904
Patent
active
051719894
ABSTRACT:
A method and apparatus for continuously introducing samples for mass spectrometry analysis which comprises providing sample molecules in an aqueous solution containing one or more organic solvents, preferably ethylene glycol, introducing said aqueous solution into the vacuum chamber of an ion source to enable said solution to solidify into a thread of solid matrix, and exposing the solid matrix to a source of energy to desorb sample molecules to be analyzed. The desorbed molecules are then photoionized and focused into a mass spectral analysis zone. The technique is suitable for interfacing liquid chromatographic separation techniques.
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Jones Glenn C.
Williams Evan R.
Zare Richard N.
Berman Jack I.
Board of Trustees of Leland Stanford Jr. University
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